1. World Health Organization. Tobacco. http://www.who.int/mediacentre/factsheets/fs339/en/. Accessed August 9, 2012.
2. Local Stop Smoking Services: Service Delivery and Monitoring Guidance 2011/12,2011
3. Nicotine replacement therapy for smoking cessation;Stead;Cochrane Database Syst Rev,2008
4. Nicotine receptor partial agonists for smoking cessation;Cahill;Cochrane Database Syst Rev,2012
5. Antidepressants for smoking cessation;Hughes;Cochrane Database Syst Rev,2010